n2r22
o2r221
p2r2
q2r22
r2r221
cts221
dts2
ets22
fts221
gts2
1jt2
2jt22
3jt221
4jt2
5jt22
qau22
rau221
sau2
tau22
uau221
f1u221
g1u2
h1u22
i1u221
j1u2